#!/bin/bash

#=================================================
# GENERIC START
#=================================================
# IMPORT GENERIC HELPERS
#=================================================

source experimental_helper.sh
source _common.sh
source /usr/share/yunohost/helpers

#=================================================
# LOAD SETTINGS
#=================================================
ynh_script_progression --message="Loading installation settings..."

app=$YNH_APP_INSTANCE_NAME

domain=$(ynh_app_setting_get --app=$app --key=domain)
path_url=$(ynh_app_setting_get --app=$app --key=path)
admin=$(ynh_app_setting_get --app=$app --key=admin)
final_path=$(ynh_app_setting_get --app=$app --key=final_path)

app_version=$(ynh_app_upstream_version)
app_main_version=$(echo $app_version | cut -d'-' -f1)
app_sub_version=$(echo $app_version | cut -d'-' -f2)

pgadmin_user="$app"

#=================================================
# CHECK VERSION
#=================================================
ynh_script_progression --message="Checking version..."

upgrade_type=$(ynh_check_app_version_changed)

#=================================================
# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
#=================================================
ynh_script_progression --message="Backing up the app before upgrading (may take a while)..."

# Backup the current version of the app
ynh_backup_before_upgrade
ynh_clean_setup () {
	ynh_clean_check_starting
	# Restore it if the upgrade fails
	ynh_restore_upgradebackup
}
# Exit if an error occurs during the execution of the script
ynh_abort_if_errors

#=================================================
# STANDARD UPGRADE STEPS
#=================================================
# STOP SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Stopping a systemd service..."

test -e /etc/uwsgi/apps-available/$app.ini && \
    ynh_systemd_action --service_name "uwsgi-app@$app.service" --action stop

#=================================================
# ENSURE DOWNWARD COMPATIBILITY
#=================================================
ynh_script_progression --message="Ensuring downward compatibility..."

if ! grep -q "$final_path" /etc/passwd; then
    sed --in-place -r "s@$app\:x\:([[:digit:]]+\:[[:digit:]]+)\:\:/.*/$app\:/usr/sbin/nologin@$app\:x\:\1\:\:$final_path\:/usr/sbin/nologin@g" /etc/passwd
fi

#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Upgrading NGINX web server configuration..."

# Create a dedicated NGINX config
ynh_add_nginx_config

#=================================================
# UPGRADE DEPENDENCIES
#=================================================
ynh_script_progression --message="Upgrading dependencies..."

ynh_install_app_dependencies $pkg_dependencies

#=================================================
# SPECIFIC UPGRADE
#=================================================
# ...
#=================================================
# Download, check integrity, uncompress and patch the source from app.src
ynh_script_progression --message="Upgrading source files..." --weight=6
install_source

# CONFIGURE PGADMIN
ynh_script_progression --message="Configuring application..."
config_pgadmin

# Config uwsgi
ynh_add_uwsgi_service 'pgadmin_user python_version'

# Clean old uwsgi config
ynh_secure_remove /etc/uwsgi/apps-enabled/pgadmin.ini

# Set permission after initialisation
ynh_script_progression --message="Protecting directory..."
set_permission

#=================================================
# GENERIC FINALIZATION
#=================================================
# SETUP LOGROTATE
#=================================================
ynh_script_progression --message="Upgrading logrotate configuration..."

# Use logrotate to manage app-specific logfile(s)
ynh_use_logrotate --logfile /var/log/pgadmin --nonappend

#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Starting a systemd service..." --weight=3

ynh_systemd_action --service_name "uwsgi-app@$app.service" --action="restart" --line_match "WSGI app 0 \(mountpoint='[/[:alnum:]_-]*'\) ready in [[:digit:]]* seconds on interpreter" --log_path "/var/log/uwsgi/$app/$app.log"
sleep 10

#=================================================
# RELOAD NGINX
#=================================================
ynh_script_progression --message="Reloading NGINX web server..."

ynh_systemd_action --service_name=nginx --action=reload

#=================================================
# END OF SCRIPT
#=================================================

ynh_script_progression --message="Upgrade of $app completed" --last